Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0TTU callsign genealogy
Currently held by Schaefer, Guy W
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W0TTU's current licensee, walking backwards.
- Schaefer, Guy WNEgranted 2012-02-17cancelled 2014-03-14
Successor callsigns
Callsigns held now by people who previously held W0TTU.
No current licensee on record previously held this callsign.